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Finding the Fourth Proportional to 609,544.80, 911,725.20 and 546,818.40

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Solution

The fourth proportional to 609,544.80, 911,725.20 and 546,818.40 is: 817,902.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,544.80 : 911,725.20 = 546,818.40 : x
  2. Step 2: Convert to fraction form
    609,544.80/911,725.20 = 546,818.40/x
  3. Step 3: Cross multiply
    609,544.80x = 911,725.20 × 546,818.40
  4. Step 4: Simplify right side
    609,544.80x = 498,548,115,103.68
  5. Step 5: Solve for x
    x = 498,548,115,103.68/609,544.80
  6. Step 6: Final answer
    x = 817,902.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.